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Amplitude analysis of $B^+\to J/\psi \phi K^+$ decays
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arxiv 1606.07898 v2 pith:LMDZEG7Q submitted 2016-06-25 hep-ex
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abstract
The first full amplitude analysis of $B^+\to J/\psi \phi K^+$ with $J/\psi\to\mu^+\mu^-$, $\phi\to K^+K^-$ decays is performed with a data sample of 3 fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s}=7$ and $8$ TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into $\phi K^+$, and four $J/\psi\phi$ structures are observed, each with significance over $5$ standard deviations. The quantum numbers of these structures are determined with significance of at least $4$ standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed $X(4140)$ state. The model includes significant contributions from a number of expected kaon excitations, including the first observation of the $K^{*}(1680)^+\to\phi K^+$ transition.
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Cited by 2 Pith papers
Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record
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Decoding the near-threshold $X_{0,\,1}(4140)$ and $X_{1}(4685)$ states via OZI-suppressed coupled-channel scattering
hep-ph 2026-02 unverdicted novelty 5.0 of 10
X0(4140) is a dynamically generated J/psi phi pole with single-channel scattering length 1.11 fm; X1(4685) is interpreted as a psi(2S) phi hadronic molecule under heavy quark spin symmetry.
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Updated analysis of charmonium states in a relativized quark potential model
hep-ph 2025-04 conditional novelty 5.0 of 10
A recalibrated relativized quark model assigns chi_c1(4010), chi_c1(4274), chi_c0(4500), and chi_c0(4700) to conventional charmonium states and predicts chi_c0(2P) near 3851 MeV.
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